AD251-A30HM

LMI Roytronic Excel Series AD chemical metering pumps shall be positive displacement, Liquifram type pumps. Relevant models are UL/CUL or CE certified. Output volume shall be adjustable while pumps are in operation from zero to maximum capacity.

Series AD2 metering pumps shall have a liquid crystal display to indicate stroke speed of the pump and theoretical flow. Control and adjustment for stroke frequency shall be by means of a tactile keypad. Adjustment for stroke length shall be by means of a readily accessible dial knob. A pulse indicator light shall flash green between strokes when pumping. The pump shall be equipped with an on/off button and a low level float switch Input. When the low level sensor registers empty, the low level indicator light shall turn red and the pump shall turn off when it registers an empty level.

The pump drive shall be totally enclosed with no exposed moving parts. Electronic pulser shall be supplied with quick connect terminals at least 0.110 inch wide (2.79 mm). Electronics shall be housed in a chemical resistant enclosure for maximum protection against chemical spillage. Electrical power consumption shall not exceed 25 watts per hour under full speed and maximum pressure conditions. Pump weight shall not exceed 10 lbs (4.75 kg).

Models with the LMI 4-Function Valve installed on a FastPrime or AutoPrime Liquid End are recommended to provide automatic pressure relief.

Chemical metering pump housing shall be of chemically resistant glass fiber reinforced thermoplastic. All exposed fasteners shall be stainless steel. Chemical metering pump valves shall be ball type. Valves shall be serviceable by replacing the cartridge valve assembly.

A total of 16 ft (4.8 m) of tubing shall be provided per pump complete with compressing connections (on models with tubing connections). A foot valve with integral one piece strainer shall be provided for the suction line (on non-high viscosity models with tubing connections), and an injection check/back pressure valve with 1/2" NPT male connection for the injection point (on models with tubing connections).